Barbecue grill



FIG. 1 is a front perspective view of a barbecue grill showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a top view thereof.

The broken lines shown in the drawings depict portions of the article that form no part of the claimed design.

The bottom view forms no part of the claimed design and is omitted. 

CLAIM The ornamental design for a barbecue grill, as shown and described. 